Aubert, B. et al. (2009) Search for Invisible Decays of the Υ(1S). Physical Review Letters, 103 (25). p. 251801. ISSN 0031-9007
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Official URL: http://dx.doi.org/10.1103/PhysRevLett.103.251801
Abstract
We search for invisible decays of the Υ(1S) meson using a sample of 91.4×106 Υ(3S) mesons collected at the BABAR/PEP-II B factory. We select events containing the decay Υ(3S)→π+π-Υ(1S) and search for evidence of an undetectable Υ(1S) decay recoiling against the dipion system. We set an upper limit on the branching fraction B(Υ(1S)→invisible)<3.0×10-4 at the 90% confidence level.
Item Type: | Article |
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Subjects: | Q Science > QC Physics |
Schools: | School of Applied Sciences |
Related URLs: | |
Depositing User: | Sharon Beastall |
Date Deposited: | 04 Jan 2012 10:41 |
Last Modified: | 28 Aug 2021 11:12 |
URI: | http://eprints.hud.ac.uk/id/eprint/12306 |
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